Hello,Test number 6 (namely ERI.f19_g16.B1850CN) eventually passed ok, in approx. 4 hours.The solution to our problem turned out to be (oddly) to set DEBUG to TRUE in env_build.xml. In that configuration, the run progressed fine throughout. This reminds me of what was pointed out by another user there: http://bb.cgd.ucar.edu/cesm-122-segmentation-fault-when-running-model.Note that I also slightly fiddled with symbolic links pointing to CAM initial files and CLM restart files (they lacked the absolute paths), but I don't reckon this is related, as the progression in the run was really only dependent on our activating the DEBUG flag.Cheers,Thibaut.